For the Equilibrium H₂ (G) + S(s) ⇄ H₂ S(g)

question 79

Multiple Choice

For the equilibrium H₂ (g) + S(s) ⇄ H₂ S(g) , K_c =6.1*10⁵ at 298 K.If the concentrations of H₂ and H₂S are equal, which statement below is true?

• A)The concentration of S equals K_c.
• B)The equilibrium constant equals 1.
• C)The reaction quotient equals 1.
• D)The system is at equilibrium.
• E)The concentrations of H₂ and H₂S can never be equal.

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